Tonino Benelli used a competition version of the 175 on which he won four Italian championship titles in five years: in 1927, 1928 and 1930 with the single overhead camshaft (SOHC) version, and in 1931 using a DOHC engine.
Engine: Single cylinder four-stroke single OHC, gear driven
Bore & stroke: 62 x 57 mm
Engine Capacity: 175cc (Factory: 173cc)
Maximum power: 7 h.p. (10 kW)
Valves per cylinder: 2
Cooling system: Air cooled
Lubrication: Dry sump with oil tank in front of crankcase and engine radiator oil
Transmission: Gear primary, chain final
Clutch: Cable operated with multiple wet disc in oil bath
Gearbox: 4-Speed Benelli gearbox with hand change
Throttle: Cable operated
Frame type: Interrupted double cradle frame
Front Suspension: Parallel fork with central spring
Rear Suspension: Oscillating rear suspension
Front Brake: Drum
Rear Brake: Drum
Front tyre: 19"
Rear tyre: 19"
Seat: solo saddle
Top speed: approx. 80 km/h
Weight: approx. 140 kg.
Source: Hessink's NL
Note. The specifications given here do not match those given in the 1932 factory brochure.